Blower pipe for wind stackers



ay 31 7 H. B. sPx-:RRY

BLOWER PIPE FOR WIND STACSERS Filed April 2o, 19'25 H ERBERT EL EFERRY Patented May 31, 1927.

f UNITED STATES PATENT OFFICE.

HERBERT IB. SEERRY, OF CHICAGO, ILLINOIS, ASSIGNOR TO APPLETON :MANUFACTUR- ING COMPANY, A CORPORATION GF ILLINOIS.

BLOWER IJIPE FOR WIND STACKERS.

Application led April 20, 1923.

This invention relates to wind-stackers and more particularly to tlexible elbows adapted lor use in connection withdischarge chutes and the like.

One ot the objects ot my invention to provide a device or elbow construction which will not only permit the outer or main chute section to be raised or lowered within a limited range, but will also permit the chute to be ewuno` upwerdly so as to assume an absolute vertical position in such a manner' that the chute and its stump or stationary portion to which the elbow is hinged may thus be brought into complete alignment so as to 'form substantially a straight continuous pipe.

il. further object ot the invention to provide a novel tornrolt connecting link by means ot which the telescoping sections are 3c pirotally connected together and are limited in 'their pivotal movement with resiect to each other.

it still 't'urther object t the invei'ition is to provide a construction. in which the pins or rivets used for securing each link to its respective section forms the pivotal connection lor the adjacent links.

'Fliese and other objects are obtained by providing a construction in which the telcscoping sections are pivoted together by a link having a` boss extending through regisi'icring apertures ot' the adjacent sections.

Referring to the drawings, Fig. l is a side elcv'ational view showing my improved ilexi- 5 ble elbow swung to its maximum liexed position or in the position in which the elbow is swung substantially through an angle ot ninety degrees.

Fig. 2 is a detail side elevational vi ew with l) the links shown in a vertical position.

liig. 3 is a cross sectional view taken on .lines lin Fig. 2.

Fig. 4f is a top plan, view ot a single section showii'lg the manner in which the links are secured to the individual sections.

Fig. 5 is a side elevational view of one ot the individual links 'forming the continuous connection between each of the sections, and

6 is an edge view oit the link shown y in Fig.

ln Ycarrying out my invention, I have shown my improved flexible elbow mounted on a stationary chute or stump 10, which 0rdinarily forms or is secured to a thresher or a machine of like character' where the iiexible .JM Serial No. 633,390.

elbow is employed. Rot-atably mounted on the stump 10 and secured to thev base section 11 isv a rotating gear 12,l which is usually geared `to a worm and manually operated mechanism, not shown, for rotating the Vdexible elbow with respect to the chute or stump .10. l'nf carrying out my invention I have provided a plurality of conically formed and telescopically arranged sections 13. Each of these sections is provided with a relatively short side llland a relatively longer side l5, as shown in Fig. 2. The shorter sides le are positioned and arranged on the smaller arc otl the elbow as shown in Fig. l. Each section is provided with oppositclydisposed perlorations 1T on each side thereof. Secured to the opposite sides of each section is a link 18 normally curved at 19 to c on't'orm to the curvature ot each section. See 4. The link 18 is provided at one end with an aperture20, a bevelled'portion 21 anda straightportion 21'; The other end ot the link is provided with an outwardly projecting lug or boss 22 having an aperture 23 extending therethrough. Formed integrally with the link 18 and extending outwardly `therefrom is a raised portion 2st. rlhe raised portion 2l forms a stop portion at 25 directly abovethe boss 22m suoli a manner that as the adjacent link is connected to the lug 22 by having the lug 22 extending through the aperture 2() ot the adjacent link7 the bevelled portion 21 as well as the straight portion 2l. is adapted to engage the stop 25 ot' the raised portion 29C ot the adjacent link in limiting the `pivotal movement of each of the links with respect to each other. y

In assembling my improved .flexible elbow, it will, ot' course, be understood that the two end sections, namely, section 1l. and section 26 are provided with special end links 27 secured thereto by means of rivets 28. The lower link .c7 secured to the section l1 is provided with an aperture 29. The apertures 17in the section 1B are positioned to register with the apertures 29 in the link 27 after which the lug of the link 18 is positioned in the registering apertures and rivet and a washer, as shown at BO, 3l, .respectively, in Fig. 3 is secured.. From this construction it will be understood that in each case` theadjacent sections are secured together 'by the stud ot the link secured to one` of the sections, protruding through the registering apertures of the adjacent link and section as well as the -apeitune in *the section to which the link is attached, as clearly shown in the cross sectional view Fig. 3.

In order to relieve the telescoping sections ol the strain of sustaining the weight ot the outer chute or delivery pipe, l have provided a novel construction da link by means of which the whole weight is sustained on the link instead ot being sustained on the sections. rlhis arrangement comprises the bevelled portion 21 of each link adapted to engage a stop portion 25 ot thepreceding link. In other words, by referring to Fig. 1, 1t will be seen with the elbow flexed to its maximum angling position that the bevelled portions 21 ot each link will engage the stop portions 525 ot the adjacent link. The deliverychute, above ret'erred to, is shown at 2:32 connected to a straight section 33, which, in turn is connected to the upper end section 26 of the flexible elbow. In the use of the above described device it will be understood, otI course, `that the usual mechanism for adjusting the delivery chute 32 with respect to the stump l0 and flexing the elbow to various positions may be employed.

ln connection with my improved link tor pivotally connecting the telescoping connectionsl have provided an additional aperture 34 through which an additional rivet may be inserted for more securely fastening the links to their respective sections. However, fit is not my intention, nor is it` necessary to employ this extra rivet `in that the rivet `tor securing the pivot stud 9.2 in the aperture 20 of the adjacent link is suiiicient to permanently secure each ot these links to their respective sections. lBy arranging and overlapping 'these links in the manner above described l have provided a very simple and ellicient as well as du able elbow and one which can easily and quickly be assembled.

lllhile in the `above specification, I have described but one embodiment which my in- `vention may assun'le in practice it will oil course, be understood "that the same is capable of lnodilicat-ion and "that modification may be employed without departing 'from the spirit and scope ol" @the invention as expressed in 'the following claims.

That l claim as my invention and desire tosecure by Letters Patent is:

l. A flexible elbow comprising a plurality of pivoted sections, and means forming the pivotal connection between said sections, said means having` stops thereon `for limiting the pivotal movement ol the sections with respect to each other.

2. `lk'lexible elbow comprising ot `pivoted telescoping sections, a link 'secured "to each section, Etheliiik ot one nsection overlapping and being pivotally connected "to 'the adjacent link and section, and means `forming `a `'partJ of each -link for limiting'the a `,plurality pivotal movement of each link with rrespect to its adjacent link.

3. A flexible elbow comprising a plurality of pivoted sections, :a link mounted on each section, the ylink of one section overlappingl and being pivotally connected to the adjacent link `and -section, and an integral boss on each link forming a part of said connections tor pivotallysecuring adjacent sections.

il. A flexible elbow comprising; a lplurality of Vpivoted sections, a link mounted on each section, and means formed as an integral part of each lin'k and extending` through adjacent sections ltor pivotally securing said adjacent sections.

5. A flexible elbow comprisingr a `plurality of pivoted sections, a link mounted on each section, means `formed as an inteoral part ol each link for pivotally securing adjacent sections, and means termed on each link for limitingl the pivotal movement ol each section with respect tothe other.

(l. A flexible elbow comprising a plurality of telescoping sections, there being register ing apertures extending through the telescoping portions of the adjacent sections, a link mounted on each section, and a boss formed on each link extending;r through said registering apertures tor pivotally sccurinpr said sections together.

7. A flexible elbow comprising a plurality of telescoping sections, a link mounted on each section, there being apertures extending' through each link registering with apertures extending through the teleseopng por tions of the adjacent sections, and a boss formed on each link extending through all` olE said registering apertures.

8. A flexible elbow comprisingr a pluralityw of telescoping sections, links 'mounted on said sections ,tor pivotally comiectinpr said sections together, and meansI carried by said 'links for liniiting the flexing' ol said sections whereby `the whole weight oit the sections is sustained by said linksI when the elbow is in its maxinnun flexed position.

9. A `llexible elbow comprising a plurality o't' telescopinpr sections, links mounted on said sections for pivotally conncctilug,l the sections together, and `means includingr stops carriell by each ot said links and engag'eable with the adjacent link lor limitingir thellexing ot said elbow whereby the whole weight oll the scc tions is sustainedby said links when the elbow is in its maximum tlexed position.

l0. Allexible elbow comprising' a plurality ot 'pivoted sections, and links "termine the pivotal connection between and limitinglhe pivotal movement of 'the sections with' respect to each other.

ln testimony whereof l have signed my name .to tlnsf'specicatlon on this 17th day offinpil A. "D. 1923.

HERBERT-n, ernaar. 

